Canadian dollar weaker as oil slips; trade data eyed

The Canadian dollar weakened against its U.S. counterpart on Monday as oil prices slipped and bond yields set a one-week low, with investors awaiting December trade data due on Tuesday for signs of momentum in a nascent export revival. The loonie, as Canada's currency is colloquially known, has gained for two straight weeks on a combination of favorable economic data and greenback weakness. At 8:47 a.m. ET (1347 GMT), the Canadian dollar was trading at C$1.3073 to the greenback, or 76.49 U.S. ce